Alzheimer's test - from a teenager

A 15-year-old British boy has developed a potential test for Alzheimer's disease that could allow the condition to be diagnosed 10 years before the first symptoms appear. Currently, Alzheimer's can only be detected through cognitive tests or by looking at the brain after death.But Krtin Nithiyanandam, of Epsom, Surrey, has developed a "Trojan horse" antibody which can penetrate the brain and attach itself to the toxic proteins present in the disease's early stages.